Cotton-gin.



PATBNTBD MAY 12 190s. R. B. LUMPKI ooTToN GIN. APPLICATION FILED JUNE17, 1907.

3 SHEETB-SHEET l.

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ff @@Kyww N0. 887,487. PATENTED MAY 12, 1908. R. B. LUMPKIN. COTTON GIN.APPLIUATION FILED UUNB 17, 1907.

3 SHBBTS`SHEET 24 PATENTED MAY 12, 1908. R. B. LUMPKIN.

COTTON GIN.

APPLICATION FILED JUNE 17. 1907.

3 SHEETS-SHEET 3.

Witwe/ace yUNITEB PATENT OlhllilOE.

ROBERT B. LUMPKIN, OF DALLAS, TEXAS, ASSIGNOR TO AIB, BLAST GIN COMPANY,OF

` DALLAS, TEXAS, A CORPORATION OF TEXAS. Y

COTTON-GIN.

Specification of Letters Patent.

Eatented May 12,1908.

Application led June 17, 1907. Serial No. 379,312.

To all 'whom it may concern.'

Be 1t known that I, ROBERT B. LUMPKIN, a c1t1zen of the United States,residing at Dallas, Texas, have invented certain new and y i in as-sma lspace as possible and to make the manufacture of gins` moreeconomicaland also to dispense with much gearing which is now used to drive `ns.

The improved gms are particularly adapted for use with an air-blast forremoving the lint from the teeth of the saws. The old brush drums aredispensed with and the gins are arranged on opposite sides of a commonair-blast pipe and a common lint flue and one belt will drive the ginson opposite sides of the said pipes. Instead of a complete gin stand,ofthe type in'common use, on each side ofthe air-blastpipe and the lintflue, one stand supports the ginson both sides of the air-blast lpe andthe gin stand also sup erts the air-b astv pipe and the lint flue an theseed conveyers. The gins are thus arranged in pairs and there may be aplurality of pairs of gins. .Thus four gms wil occupy little, if any,more space than two gins oi the common'type. l

Other objects and advantaees will be fully explained in the followingdescription and the invention will be more particularly pointed out inthe claims.

Referenceis had to `the accompanying drawings which form a part ci thisapplication and specification.

Figure 1 is a perspective view of four gin's Aouped together ascontemplated under the improvements herein set orth,.for clearness theair-blast pi e and the lint flue andthe seed conveyers eing omitted fromthis view. Fig. 2 is an end view oi the same, showing all parts comlete. Fig. 3 is a plan view of four gins 'wit the gin breasts openedout, one gang of saws and ribs therefor being shown complete and onlyparts of the other gangs and breast ribs being shown. Fig. is a verticalsection of two (rms, showing in detail the arrangement oi the pipes andchutes and lues relative to the gang oi saws or each gin, and showingthe seed conveyers. Fig. 5

led on the rods la.

` is a plan view of the air-blast pipe, showing the arrangement of thefeeding chutes one chute being shown in section. Fig. 6 is a lan view ofthe lint fine and the lint chutes eading thereto.

Similar characters of reference are used to indicate the same partsthroughout the several views.

The gins are provided with frame elements 1 which have legs 2.and 3integral therewith.

With this arrangement two more gins may` be added to a plant by addingone frame element. The frames are provided with side bars 4 to which thegin breasts 5 are hinged. The gin saw shafts 6 are journaled in theframe elements 1. The vframe elements 1 have upward extensions 7 and topbeams 8 and 9 are secured to extensions 7. The air-blast pipe 10 issupported on frame elements 1 between the extensions 7. The gin breasts5 are provided with the usual grating or ribs 11 and saws 12 which runbetween the ribs. The D'in breasts 5 are hinged to the frame pieces 4 byhinges 13 and the breasts 5 rest against the beams S and 9. The breastsare provided with the usual antitriction revolving disks 14 mounted in'the ends of the breast. The bars 11 extend between the saws 12. Itfrequently becomes necessary to lift the ribs from between the saws.Provision is made for hitting the breasts 5 which carry the ribs blevers which litt the breasts on each side o? the air-blast pipesimultaneously. Rods 15 are mounted in suitable bearings on the beams 8and E).

Each lever would turn the rod on which it is mounted. Cam levers 17 arerigidly mounted on the rods 15. Link rods 18 are pivotally connectedwith the cam levers 17. Levers 19 are rigidly mounted on the` rods 15and bars 2() are pivotall connected with Vthe arms 19 and with t e ginbreasts. With the levers thus connected a null on either lever 1 6 willraise the gin breasts of the gins on opposite sides of the air-blastpipe. As shown in Fig. 3, the rods 15 may extend over anyconvcnientnumber of gins.4

Extending between the two gins of each pair et gins 1s an air-.blastpipe 10. The pipe 10 is supported on the frame elements 1 and b rhangers 21 which are attached to the c utes 22 and which extend upthrough bearings 23. The hearings 23 are attached to the beams 8 and Qand the'hangers 21 are sup- Levers 16 are rigidly mount ported in thebearings by nuts.

v beyond the other side for the purpose oi' turning the blast of airsomewhat inthe direction oi the revolving saws. A defiecting stri 24 1sattached to the short side of the air'- eeding chute for thepurposeofcausing the air to strike the teeth of the revolving saws, theair being driven against the saws and partly between the saws. Eachchute may be provided with a plurality of vertical partitions 25 whichwill serve to distribute the blast evenly on the saws 12, and whichprevent the draft from striking the gang of saws lengthwise. L

Below the air-blast pipe is located the lint flue 26 to receive the lintfromall the gins in the battery. Lint chutes 27 receive the lint cottonas it is driven from the saws 12 and direct the same/to the lint flue26. The lint flue may be provided with a door or valve 28 and the blastpipe 10 may be provided with a door or valve 29. The course of theairblast is through the air-blast pipe, through the air-feed chutes 22,against the saw teeth., driving the'cotton' therefrom into the lintchutes 27, and thence driving the lint on through the lint flue 26.

The saws of the gins on o posite sides of the air-blast pipe are driveny a single belt 30S/by means of the pulleys 3i which are mounted on theshafts of the saws and by the idle pulley 32. The belt 30 may be drivenby ang suitable power.

i eed conveyers 33 run through and are supported by thelegs 2 and 3. Theseed conveyors are the spiral conveyors in commonuuse. They shafts 34 ofthe seed conveyers are journaled in bearings 35 which are attached tolegs 2 and 3. The outside 36 of the 'seed through 37 extends outwardlyand u wardlyto catch the seed which fall from t e ribs ii of the ginbreast.

The operation will beunderstood from the above description. it is shownabove how the frames for two gins are combined into one stand and howthe gin stands of f our gins are converted or combined into one ginstand. The four gins can be correctly defined as a quadruple gin. Aseries of gins are disposed on each side of an air-blast pipe andcornpressed air is directed against the saw teeth irom a common airsupply source, striking the gangs or saws tangentially. The gin breastsof all the gins can be operated by a single lever through the linlr`bars from one in breast to the other and to the common aine. The lintcotton from all the gins is delivered through a common lint iue which issupported by traine described. in

seais? order that there may not be too great strain on the journalbearings at the ends oi the gins to which power is applied, it isadvisable to extend the shafts 6 and provided an additional frame 1 forthe bearings for the-shafts 6, as shown in Fig. 3.

Having fully described my invention, what l claim as new and desire tosecure by Letters Patent, is,^-'

1. A cottn gin having upright frames provided wi'th supporting legs andupper extensions, side bars attached to said frames, upper beamsattached to said extensions, an airblast pipev carried by said framesbetween said upper extensions, gangs of gin saws journaled on the sidesof said frames opposite each other, gin breasts hinged to said bars andresting against said upper beams, levers provided with link-barsoperatively con* nected to gin breasts on opposite sides ofthe ginstand, air-feeding chutes connected with said air-blast pipe anddirecting blasts of air to the gins on each side of said air-blast pipe,and

a lint flue provided with lchutes to receive cotton from the ginsvoneach side thereof.

2. A cotton gin plant for a plurality of gins` having a series o uprightframes provided with upper extensions on each side of eachv frame,A aseries of gangs'of saws Journaled on opposite sides of said frames, onegang` of saws being opposite'another gang oi sawsan air-blast pipesupported on said framesbetween said extensions and between theoppositely disposed gins and having lateral chutes for directing air tothe oppositely disposed saws, and a lint ue suspended on said framesbetween theoppositely disposed gins and provided with chutes forreceiving cotton from said gins. Y

3. A. cotton gin plant for a plurality of gins having a series ofupright frame elements provided with upper extensions on each side ofeach trarne element, a series of gangs of saws journaled on oppositesides of said frame elements, and an air-blast pipe supported on saidframe elements between saidv extensions andprovided with lateralair-feeding chutes for directing compressed air against the oppositelydisposed saws.

4i. A cotton gin p ant for a plurality of gins having a series obeingprovided with-upper extensions on each side thereof and perforatedlegs,a series of oppositely disposed gangs of saws journaled on each side ofsaid trame, a common airblast pipe supported on said frame elementsbetween said extensions and provided with oppositely extending lateralfeeding chutes for directing air under pressure to said saws, a lintiiue suspended on said frame elements between'said legs and providedwith chutes leading from the oppositely disposed saws, and s'eedconveyors mounted in the perforations in said legs.,

upright frame elements constituting a single frame and each elementseme?5. A oottongin plant for a plurality ofgins saving a series of uprightframes, side beams and top beams connecting said frames, gangs ofoppositely disposed saws ionrnaled on said trames, en' air blast pipemounted on said 'to said breast levers and to said breasts, hand leversrigidly mounted on said rods', cani levers rigidly mounted onsaid rodszand link bars pivotally connected .with said cam levers.4 y y 6. Acotton gin plant comprising a series of upright frame elements, eachelement having` a journal beari series or gangs of saws journaled insaid bearinffs on the outer sid es of said frame elements, si e beamsholding said elements in operative positions, said frame elements havingprovisions for holding an air blast pipe between the oppositely disposedgangs of saws, and an air blast pipe mounted in said frame elements andextending substantially between the oppositely disposed gangs of sawsand provided With air chutes leading therefrom to each gang o1 saws.

7. A cotton ries of gangs oi saws mounted in said frame at the sidesthereof and provided with pivotng on each side thereof, a-

in plant having a frame, a seed in breasts, and means for moving all ofsai gin breasts simultaneously consisting of rods mounted on said frame,one rod for each series of gin breasts, provided with arms and linksoperatively connecting the Said rods and gin breasts, a link and camsoperatively Connecting said rods, and a lever for rocking one of saidrods.

8. A cotton gin plant having a frame, a series of .Gangs of saws mountedin said frame at the sides thereof, and means for stripping lint cottonfrom said saws consistingr of an air blast pipe disposed be w en saidseries of gangs of saws land provi ed with lateral chutes leading toeach ang of saws and each chute being provided wlth partitions to causean even distribution of air to all saws of a gang oi saws.

9. A cotton gin lhaving a gang of saws, an air blast pipe for supplyinga blast of air for stripping the lint cotton from the saws, an airch'uteleading from said air-blast pipe, and partitions in said chute to causean even distribution of air to all the saws of the gang of saws.

In testimony whereof, I set my hand in the presence of two witnesses,this 10th day of June,-1907.

ROBERT B. LUMPKIN. Witnesses:

, A'. L. JACKSON, C. LUMrirrN.-

